840506065

素因数分解:

$5^1\times 7^4\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1407

約数の個数: 40

約数和(自身を含む): 1199746728

約数和(自身を除く): 359240663

約数列:

[1, 5, 7, 35, 49, 53, 245, 265, 343, 371, 1321, 1715, 1855, 2401, 2597, 6605, 9247, 12005, 12985, 18179, 46235, 64729, 70013, 90895, 127253, 323645, 350065, 453103, 490091, 636265, 2265515, 2450455, 3171721, 3430637, 15858605, 17153185, 24014459, 120072295, 168101213, 840506065]

約数ペア:

[(1, 840506065), (5, 168101213), (7, 120072295), (35, 24014459), (49, 17153185), (53, 15858605), (245, 3430637), (265, 3171721), (343, 2450455), (371, 2265515), (1321, 636265), (1715, 490091), (1855, 453103), (2401, 350065), (2597, 323645), (6605, 127253), (9247, 90895), (12005, 70013), (12985, 64729), (18179, 46235)]